28369991

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:203

約数の個数: 32

約数和(自身を含む): 34546176

約数和(自身を除く): 6176185

約数列:

[1, 13, 17, 31, 41, 101, 221, 403, 527, 533, 697, 1271, 1313, 1717, 3131, 4141, 6851, 9061, 16523, 21607, 22321, 40703, 53227, 53833, 70397, 128371, 280891, 691951, 915161, 1668823, 2182307, 28369991]

約数ペア:

[(1, 28369991), (13, 2182307), (17, 1668823), (31, 915161), (41, 691951), (101, 280891), (221, 128371), (403, 70397), (527, 53833), (533, 53227), (697, 40703), (1271, 22321), (1313, 21607), (1717, 16523), (3131, 9061), (4141, 6851)]